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inysia [295]
3 years ago
13

Which step is incorrect? Look at picture

Mathematics
2 answers:
asambeis [7]3 years ago
8 0

Answer: step 4 is incorrect

Step-by-step explanation:

postnew [5]3 years ago
4 0

Answer:

step 4 is incorrect.

there must be;

cos(π/2-x)cos(y)-sin(π/2-x)siny

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Please please help. I have a bunch of these and I don’t understand it at all
shtirl [24]
The correct option is: Option (B) \sum_{i=1}^{7} (5i-2)

Explanation:

First thing is that the difference between each number in the series with the next number is 5. It means it must be the multiple of 5. There are two options that contain multiples of 5: Option B and Option D. Now in the option D, the upper limit is 6. If we put 6 in the expression: 5(6)-2, the last term would be 28. However in the series given in the question, the last term is 33. Hence 5(7) - 2 = 35 - 2 = 33 which is Option B.

When i=1: 5(1)-2 = 3
When i=2: 5(2)-2 = 8
When i=3: 5(3)-2 = 13
.
.
When i=7: 5(7)-2 = 35-2 = 33
Hence the correct option is (B).
3 0
4 years ago
How many sides angles and vertices does a rectangular prism have?
ch4aika [34]
Rectangular prisms have 6 sides, 8 vertices, and 12 edges 
4 0
4 years ago
If f(x) = 3x-4, and g(x) = 2f(x)-1, what is g(5)?
kvasek [131]

Answer:

g(5) = 21

Step-by-step explanation:

Substituting f(x) into g(x):

g(x) = 2(3x-4) - 1

= 6x - 8 - 1

= 6x - 9

Seeing that g(x) = 6x-9,

g(5) = 6(5) - 9

= 30 - 9

= 21

<em>Feel free to mark this as brainliest! :D</em>

6 0
3 years ago
The expression -120+13m represents a submarine that began at a depth of 120 feet below sea level and ascended at a rate of 13 fe
Snowcat [4.5K]

Answer:  The depth was 42 feet below see level after  6 minutes

Step-by-step explanation:

If m represents the minutes then input 6 for m into the expression and solve.

-120 + 13(6)

-120 + 78  = -42

6 0
3 years ago
Help with question 11. Please need it ASAP ‼️‼️‼️‼️
nalin [4]

Answer:

2,6

Step-by-step explanation:

8 0
3 years ago
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